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电动汽车无线充电双LCC电路特性分析与仿真

更新时间:2020-06-06 04:45:40 大小:2M 上传用户:六3无线电查看TA发布的资源 标签:电动汽车无线充电 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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针对电动汽车无线充电过程中负载变化时对输出电流的影响问题,设计双LCC谐振补偿电路实现电动汽车无线恒流充电。对LCC电路阻抗频率特性、恒流/恒压特性等进行理论推导,在理论研究基础上进行参数设计,将双LCC谐振补偿电路设计成恒流工作模式。在Pspice软件中建模仿真可知谐振状态下系统阻抗表现为纯阻性特点,逆变器提供有功功率。研究表明,双LCC电路滤波特性、改善原边电压或电流应力以及鲁棒性比基本谐振补偿电路更加优越,满足电动汽车无线充电要求。

An approach of constant current charging was proposed using the double LCC circuit topology to improve the load changing during wireless EV charging.Theoretical derivation was made for the impact of LCC impedance,constant current and constant voltage characteristics and coupling coefficient on the output voltage and current.The parameters were then designed and so were the double LCC compensation circuit to be in a mode of constant current operation.Under resonance state in Pspice,the system impedance exhibits a pure resistance,and the inverter provides only active power.Research shows that the LCC circuit gives much better filter and robustness than the basic resonant compensation circuit to use for EV wireless chargi...

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